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Browse by Category: Main > Material Science
Class Information
Number: 420/476
Name: Alloys or metallic compositions > Copper base > Tin containing > Zinc containing
Description: Alloy, or metallic composition which additionally contains zinc.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8470100 Copper alloys and heat exchanger tubes Jun. 25, 2013
8470101 Lead-free copper alloy for casting with excellent mechanical properties Jun. 25, 2013
8435361 Copper-zinc alloy for a valve guide May. 7, 2013
8366840 Leadless brass alloy excellent in stress corrosion cracking resistance Feb. 5, 2013
8349097 Dezincification-resistant copper alloy and method for producing product comprising the same Jan. 8, 2013
8273193 Lead-free, bismuth-free free-cutting silicon brass alloy Sep. 25, 2012
8171886 Structure used in seawater, copper alloy wire or bar forming the structure, and method for manufacturing the copper alloy wire or bar May. 8, 2012
7819992 Copper alloy water supply member Oct. 26, 2010
7776163 Lead-free free-cutting aluminum brass alloy and its manufacturing method Aug. 17, 2010
7736448 Nano icrystals copper material with super high strength and conductivity and method of preparing thereof Jun. 15, 2010
7351372 Copper base alloy and method for producing same Apr. 1, 2008
7270892 Friction bearing Sep. 18, 2007
7172662 Copper alloy material for parts of electronic and electric machinery and tools Feb. 6, 2007
7090732 High-mechanical strength copper alloy Aug. 15, 2006
6942742 Copper-based alloy excellent in dezincing resistance Sep. 13, 2005
6893514 High-mechanical strength copper alloy May. 17, 2005
6797137 Mechanically alloyed precious metal magnetic sputtering targets fabricated using rapidly solidfied alloy powders and elemental Pt metal Sep. 28, 2004
6716541 Material for a metal strip Apr. 6, 2004
6695934 Copper alloy and process for obtaining same Feb. 24, 2004
6482276 Copper alloy with punchability, and a manufacturing method thereof Nov. 19, 2002
6464810 Brass material, brass tube and their production method Oct. 15, 2002
6136104 Copper alloy for terminals and connectors and method for making same Oct. 24, 2000
6103188 High-conductivity copper microalloys obtained by conventional continuous or semi-continuous casting Aug. 15, 2000
6099663 Copper alloy and process for obtaining same Aug. 8, 2000
5997663 Nickel-free copper alloy Dec. 7, 1999
5653827 Brass alloys Aug. 5, 1997
5637160 Corrosion-resistant bismuth brass Jun. 10, 1997
5556446 Machinable brass compositions Sep. 17, 1996
5507885 Copper-based alloy Apr. 16, 1996
5445665 Machinable brass compositions Aug. 29, 1995
5330712 Copper-bismuth alloys Jul. 19, 1994
5250256 High-tensile copper alloy for current conduction having superior flexibility Oct. 5, 1993
5124124 High-tensile copper alloy for current conduction having superior flexibility Jun. 23, 1992
5102620 Copper alloys with dispersed metal nitrides and method of manufacture Apr. 7, 1992
5024814 Copper alloy having excellent hot rollability and excellent adhesion strength of plated surface thereof when heated Jun. 18, 1991
5021105 Copper alloy for electronic instruments Jun. 4, 1991
4971758 Copper-based alloy connector for electrical devices Nov. 20, 1990
4935076 Copper alloy for use as material of heat exchanger Jun. 19, 1990
4879094 Cu--Sn--Zn--Bi alloys Nov. 7, 1989
4822560 Copper alloy and method of manufacturing the same Apr. 18, 1989
4741394 Radiator for motor cars May. 3, 1988
4732732 Migration resistant phosphor bronze alloy Mar. 22, 1988
4656003 Copper alloy and production of the same Apr. 7, 1987
4644674 Alloy for coins Feb. 24, 1987
4627960 Copper-based alloy Dec. 9, 1986
4612167 Copper-base alloys for leadframes Sep. 16, 1986
4587097 Homogeneous low melting temperature brazing filler metal for joining ferrous and non-ferrous alloys May. 6, 1986
4452757 Copper alloy for radiators Jun. 5, 1984
4402906 Metallic material proof against attachment of marine organisms Sep. 6, 1983
4374085 Silver-tin-copper-palladium alloy and amalgam thereof Feb. 15, 1983

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